MAF mod on a 4.0l?
I don't know because I have a 4.0l and it's a 2003. I'm still afraid to try it because i don't know how good the results in the end!! I will wait until I have money backed up for just in cased if the MAF mod screwed up and Ford refused to replaced it!
Originally Posted by Dave and Julie
Of course they would refuse to replace it. And it isn't just a MAF it is also an IAT.
When they send that back to the warranty parts return center and Ford refuses to pay the dealer for the repair, they might catch on to you. But you're right, they won't find what they aren't looking for.
N3elz did it to my 2002.. in febuary it works fine.
its stalled like twice now EVER .. and both were due to my apten chip having a bad connection after being installed for 15monthes.(cleaned the contacts and its fixed)
Rand
its stalled like twice now EVER .. and both were due to my apten chip having a bad connection after being installed for 15monthes.(cleaned the contacts and its fixed)
Rand
daddy grigs did my maf mod on mine in a parking lot
never had a problem with any stalling or stumbling
out of all of the free mods you can do it one of the best ever
truck pulls really hard aftermaf mod ......
Jeff
never had a problem with any stalling or stumbling
out of all of the free mods you can do it one of the best ever
truck pulls really hard aftermaf mod ......
Jeff
Well, I'll weigh in on this.
MAF mod on the 4.0 is much higher risk than on the 3.0 (where ther is virtually NO risk except the warranty issues Dave and Julie brought up). My 3.0 has been modded for almost 2 years and it runs fine (it's a 2002).
2004 MAF's are quite different. They have the MAF mod already built in, basically. The sensor is a different design entirely and results in much less blocking of the intake. I like it.
Yes, the IAT is in the MAF, but the MAF mod won't affect it. I would say about 1 in 4 of the 4.0 MAF mods I've done has had a problem, and about 1/2 of them were too much to live with.
There were some rare cases of MAF swaps by dealers after modding; but they were special cases where the dealer had an extra for some reason and they knew the truck owner well. Not something you should count on. Taking a hacksaw to your MAF is NOT covered under the warranty except by the grace of the service department!
So although I have done MAF mod's on 4.0's, I always advise against it. Many people want to do it anyway so I do it for them -- but no one can guarantee what the result will be. 4.0's are much more finicky about idle air metering than the 3.0 engines are.
MAF mod on the 4.0 is much higher risk than on the 3.0 (where ther is virtually NO risk except the warranty issues Dave and Julie brought up). My 3.0 has been modded for almost 2 years and it runs fine (it's a 2002).
2004 MAF's are quite different. They have the MAF mod already built in, basically. The sensor is a different design entirely and results in much less blocking of the intake. I like it.
Yes, the IAT is in the MAF, but the MAF mod won't affect it. I would say about 1 in 4 of the 4.0 MAF mods I've done has had a problem, and about 1/2 of them were too much to live with.
There were some rare cases of MAF swaps by dealers after modding; but they were special cases where the dealer had an extra for some reason and they knew the truck owner well. Not something you should count on. Taking a hacksaw to your MAF is NOT covered under the warranty except by the grace of the service department!

So although I have done MAF mod's on 4.0's, I always advise against it. Many people want to do it anyway so I do it for them -- but no one can guarantee what the result will be. 4.0's are much more finicky about idle air metering than the 3.0 engines are.
Or, to borrow from an old gun ad: "You can mod my MAF when you pry it from my cold, dead, fingers..."
That's by someone who is SERIOUS about their warranty!!!
Hey, Jeff! My weight is 215, down from 237 and still dropping (doctor's orders, don't ya' know...) Y'all won't recognize me at Centralia.
That's by someone who is SERIOUS about their warranty!!!
Hey, Jeff! My weight is 215, down from 237 and still dropping (doctor's orders, don't ya' know...) Y'all won't recognize me at Centralia.
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